Sealed zipper assembly
A sealed zipper assembly includes a first zipper segment and a second zipper segment in overlapping relation to create a sealing zone. A sealing element is positioned in the sealing zone to prevent leakage between the first zipper segment and the second zipper segment.
Latest YKK (U.S.A.) Inc. Patents:
There is described a method of sealing a zipper closure and a sealed zipper assembly that can be used in applications involving liquids or potentially harmful gases.
BACKGROUNDEP Patent specification 1,481,601 (Kallionpaa) titled “Closure for zipper ends”, discloses a sealing mechanism for a zipper closure. However, the sealing mechanism taught by the Kallionpaa reference is not ideal. The sealing mechanism is complicated to use and the material around the sealing mechanism tends to become fatigued, eventually leading to failure. The bulk of the sealing mechanism is uncomfortable to wear in some applications. There is, therefore, a need for an alternative method of sealing a zipper closure and an alternative sealed zipper assembly.
SUMMARYAccording to one aspect there is provided a method of sealing a zipper closure. A step is taken of providing a first zipper segment and a second zipper segment in overlapping relation to create at least one sealing zone. A further step is taken of positioning a sealing element in the at least one sealing zone to prevent leakage between the first zipper segment and the second zipper segment.
According to another aspect there is provided a sealed zipper assembly which includes a first zipper segment and a second zipper segment in overlapping relation to create at least one sealing zone. A sealing element is positioned in the at least one sealing zone to prevent leakage between the first zipper segment and the second zipper segment.
It will be appreciated that the sealing element used may vary. There will hereinafter be described with reference to the drawings various alternative sealing elements. One sealing element is a resiliently deformable sealing element that is compressed within the sealing zone. Another sealing element is an expandable sealing element that expands to occupy the sealing zone. Yet another sealing element is a plug that is wedged into the at least one sealing zone. Yet another sealing element is plug that can be compressed lengthwise via an internal screw tensioner.
It will also be appreciated, that the assembly may involve differing numbers of interlocking zipper fasteners. There will hereinafter be described a first embodiment in which there is a single interlocking zipper fastener and a single sealing zone. The single interlocking zipper fastener has a first series of interlocking teeth and a second series of interlocking teeth and a least one slider. The single interlocking zipper fastener has a first end that serves as the first zipper segment and a second end that serves as the second zipper segment. There will hereinafter be described another embodiment in which there is more than one interlocking zipper fastener and more than one sealing zone. Each interlocking zipper fastener has a first end and a second end. The first end of one interlocking zipper fastener serves as the first zipper segment and the second end of another interlocking zipper fastener serves as the second zipper segment.
It will also be appreciated that when the first zipper segment and the second zipper segment are overlapping, they are not necessarily parallel to the one or more interlocking zipper fasteners. There will hereinafter be described an embodiment in which the first zipper segment and the second zipper segment, which form the at least one sealing zone, project outwardly from the one or more interlocking zipper fasteners. In a circular configuration, this might be described as projecting radially.
The method of sealing a zipper closure and the sealed zipper assembly will hereinafter be described with respect to embodiment in which one or more interlocking zipper fastener are arranged in a substantially circular configuration. This configuration is the one that was developed for the applicant's intended application. It will be appreciated that the teachings are equally applicable to linear applications.
These and other features will become more apparent from the following description in which reference is made to the appended drawings, the drawings are for the purpose of illustration only and are not intended to be in any way limiting, wherein:
A first embodiment of sealed zipper assembly will now be described with reference to
Structure and Relationship of Parts:
Referring to
Referring to
Referring to
Referring to
Operation:
Referring to
Variations:
There will hereinafter be described variations that may be made to the first embodiment. With each variation, elements that are identical to the first embodiment will be identified by identical reference numerals. Only those aspects that differ from the first embodiment will be described.
The first embodiment illustrated a single sealing element 22. Referring to FIG. 15, there is illustrated an alternative sealing element 122 that has a first seal component 124 and a second seal component 126. Referring to
In the first embodiment, sealing element 22 was held in place by friction and was removable. Referring to
In the first embodiment, sealing element 22 was elastomeric foam. Referring to
In the first embodiment, first zipper segment 12 and second zipper segment 14 are positioned substantially parallel to interlocking zipper fastener 24. Referring to
In the first embodiment, there was only one interlocking zipper fastener 24 and only one sealing zone 16. Referring to
It is not unusual for a garment intended for use in water, such as garment body 40 to have air transfer valves, to provide for air movement. Referring to
In the first embodiment, sealing element 22 was compressed. Referring to
Another alternative sealing element is positioned between two clamping elements with at least one of the clamping elements being movable toward and away from another of the clamping elements. As the clamping elements are moving closer together, the sealing element is forced outwardly to seal the sealing zone. Referring to
Advantages:
The method of sealing a zipper closure and the sealed zipper assemblies described above provide a number of advantages:
1. It is relatively simple to use, when compared with the Kallionpaa reference.
2. It is less expensive to manufacture, when compared with the Kallionpaa reference.
3. It has less bulk and is more comfortable to wear, when compared with the Kallionpaa reference.
4. It has greater flex and is less subject to material fatigue, when compared with the Kallionpaa reference.
5. It will work with any most, if not all, brands and styles of dry zipper.
6. It has a degree of adjustability to fit difference circumferences by increasing or decreasing the amount of overlap, whereas the Kallionpaa reference is an endless loop that must be made to a specific circumference.
7. If air transfer is desired, an air transfer tube can be positioned through the sealing element to avoid making extra holes in garment 40 to accommodate air transfer valves.
Cautionary Warnings:
It will be appreciated that not all zippers can function in a liquid environment. In order to avoid leakage, one has to use a waterproof zipper. It will also be appreciated that there are a number of different styles of waterproof zippers. Suitable waterproof zippers will be known to persons familiar with underwater diving and will, therefore, not be listed here.
In order for the sealing elements described above to be effective, there are a number of leakage points along stitches and seams that must be effectively sealed.
Referring to
Referring to
In this patent document, the word “comprising” is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article “a” does not exclude the possibility that more than one of the element is present, unless the context clearly requires that there be one and only one of the elements.
The illustrated embodiments have been set forth only as examples and should not be taken as limiting a purposive interpretation of the claims.
Claims
1. A sealed zipper assembly, comprising:
- a waterproof interlocking zipper fastener having a first series of interlocking teeth supported on a first band, a second series of interlocking teeth supported on a second band and a slide that slides in a first direction to bring the first series of interlocking teeth and the second series of interlocking teeth into engagement, and slides in a second direction to disengage the first series of interlocking teeth and the second series of interlocking teeth;
- the waterproof interlocking zipper fastener having a first end that serves as a first zipper segment and a second end that serves as a second zipper segment;
- the first zipper segment and the second zipper segment being in overlapping relation to create an area of overlap with at least one sealing zone, the at least one sealing zone being positioned within and bordered by the first band and the second band; and
- a sealing element positioned in the at least one sealing zone to prevent leakage between the first zipper segment and the second zipper segment axially along the area of overlap, wherein the sealing element is removable from the at least one sealing zone.
2. The sealed zipper assembly of claim 1, wherein the sealing element is a resiliently deformable sealing element that is compressed within the at least one sealing zone.
3. The sealed zipper assembly of claim 1, wherein the sealing element is an expandable sealing element that expands to occupy the at least one sealing zone.
4. The sealed zipper assembly of claim 1, wherein the sealing element is a plug that is wedged into the at least one sealing zone.
5. The sealed zipper assembly of claim 4, wherein the plug is secured by a tether to an interlocking zipper fastener and is manually movable between an operative sealing position, in the at least one sealing zone, and a stored position, withdrawn from the at least one sealing zone.
6. The sealed zipper assembly of claim 1, wherein an air transfer tube extends through the sealing element, and the air transfer tube has a closure valve.
7. The sealed zipper assembly of claim 1, wherein the sealing element is attached to an interlocking zipper fastener where the first zipper segment and the second zipper segment overlap to form the sealing zone.
8. The sealed zipper assembly of claim 1, wherein the sealing element is positioned between two clamping elements with at least one of the clamping elements being movable toward and away from another of the clamping elements such that movement of the clamping elements closer together forces the sealing element outwardly to seal the sealing zone.
9. The sealed zipper assembly of claim 1, comprising:
- a body comprising a first discrete body component and a second discrete body component;
- the first series of interlocking teeth secured to the first discrete body component in a generally circular configuration; and
- the second series of interlocking teeth secured to the second discrete body component in a generally circular configuration.
10. A sealed zipper assembly, comprising:
- a waterproof interlocking zipper fastener having a first series of interlocking teeth supported on a first band, a second series of interlocking teeth supported on a second band and a slide that slides in a first direction to bring the first series of interlocking teeth and the second series of interlocking teeth into engagement, and slides in a second direction to disengage the first series of interlocking teeth and the second series of interlocking teeth;
- the waterproof interlocking zipper fastener having a first end that serves as a first zipper segment and a second end that serves as a second zipper segment;
- the first zipper segment and the second zipper segment being in overlapping relation to create an area of overlap with at least one sealing zone, the at least one sealing zone being positioned within and bordered by the first band and the second band;
- a sealing element positioned in the at least one sealing zone to prevent leakage between the first zipper segment and the second zipper segment axially along the area of overlap; and
- a sealing element actuator, wherein the sealing element actuator is axially movable, and wherein movement of the sealing element actuator selectively expands the sealing element outwardly.
11. The sealed zipper assembly of claim 10, wherein the sealing element actuator comprises a shaft and a clamping element movable along the shaft, wherein the clamping element is configured to selectively compress the sealing element, and wherein compression of the sealing element by the clamping element expands the sealing element outwardly.
12. The sealed zipper assembly of claim 11, wherein the clamping element comprises a nut and a twist knob, wherein the twist knob is axially movable along the shaft toward the nut to selectively compress the sealing element.
2347583 | April 1944 | Vartabedin |
2454214 | November 1948 | Sapp |
2615224 | October 1952 | Shur |
2641037 | June 1953 | Gossner |
2693013 | November 1954 | Gossner |
2746114 | May 1956 | Williams |
2841851 | July 1958 | Van Amburg et al. |
3102570 | September 1963 | Fairchilds |
5062186 | November 5, 1991 | Rampolla et al. |
6092266 | July 25, 2000 | Lee |
6223349 | May 1, 2001 | Roiser |
20130133129 | May 30, 2013 | Martin |
20160021990 | January 28, 2016 | Ogura et al. |
103945724 | July 2014 | CN |
203748781 | August 2014 | CN |
1057424 | December 2000 | EP |
1 481 601 | December 2004 | EP |
557 418 | November 1943 | GB |
2 094 396 | September 1982 | GB |
2011/127353 | October 2011 | WO |
- International Search Report Corresponding to PCT/CA217/050477 dated Jul. 25, 2017.
- Written Opinion Corresponding to PCT/CA217/050477 dated Jul. 25, 2017.
- European Office Action Corresponding to EP17 795 241.0 dated Jun. 17, 2020.
- U.S. Appl. No. 16/734,670 , Non-Final Office Action, dated Sep. 17, 2020, 8 pages.
- U.S. Appl. No. 16/734,670 , Notice of Allowance, dated Jan. 19, 2021, 7 pages.
- Chinese Patent Application No. 201780035087.8 , Office Action, dated Dec. 16, 2020, 4 pages.
- European Patent Application No. 17795214.0 , Office Action, dated Jan. 25, 2021, 4 pages.
Type: Grant
Filed: Apr 18, 2017
Date of Patent: Sep 14, 2021
Patent Publication Number: 20190142117
Assignee: YKK (U.S.A.) Inc. (Marietta, GA)
Inventors: Richard Kerr Myerscough (Victoria), Ross Davis Harrington (Victoria)
Primary Examiner: Robert Sandy
Assistant Examiner: Louis A Mercado
Application Number: 16/300,209
International Classification: A44B 19/32 (20060101); A44B 19/36 (20060101);